A novel poly(vinyl alcohol) post-precipitation template synthesis and property tuning of photoactive mesoporous nano-TiO2
For the first time, a facile method is introduced to obtain ultrathin, mesoporous TiO2 nanosheets by the alkali precipitation of aqueous TiCl3 in the presence of NH4OH, and in-situ templating with polyvinyl alcohol (PVA). The synthesized titania have been characterized by N2 adsorption-desorption me...
| Principais autores: | , , |
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| Formato: | Artigo |
| Idioma: | English |
| Publicado em: |
Iranian Chemical Society
2020
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| Acesso em linha: | http://psasir.upm.edu.my/id/eprint/87628/1/ABSTRACT.pdf |
| _version_ | 1825952392745582592 |
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| author | Hamisu, Abubakar Gaya, Umar Abdullah, Abdul Halim |
| author_facet | Hamisu, Abubakar Gaya, Umar Abdullah, Abdul Halim |
| author_sort | Hamisu, Abubakar |
| collection | UPM |
| description | For the first time, a facile method is introduced to obtain ultrathin, mesoporous TiO2 nanosheets by the alkali precipitation of aqueous TiCl3 in the presence of NH4OH, and in-situ templating with polyvinyl alcohol (PVA). The synthesized titania have been characterized by N2 adsorption-desorption measurements, x-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), thermo-gravimetric analysis (TGA) and ultraviolet-visible (UV-vis) spectroscopy. The obtained titania were hexagonal-like, detached, non-agglomerated, polydispersed, sub-20 nm nanodiscs. Unlike in doping methods, their surface area and pore volumes of can easily be tailored devoid of any wavelength shift, by simply tuning the amount of the template. Accordingly, their aggregation as microspheres can successfully be controlled by the templating step. The remarkable photoactivity of these nanoscopic materials has been confirmed by the degradation of aqueous methyl orange. |
| first_indexed | 2024-03-06T10:43:57Z |
| format | Article |
| id | upm.eprints-87628 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T10:43:57Z |
| publishDate | 2020 |
| publisher | Iranian Chemical Society |
| record_format | dspace |
| spelling | upm.eprints-876282022-07-06T05:05:18Z http://psasir.upm.edu.my/id/eprint/87628/ A novel poly(vinyl alcohol) post-precipitation template synthesis and property tuning of photoactive mesoporous nano-TiO2 Hamisu, Abubakar Gaya, Umar Abdullah, Abdul Halim For the first time, a facile method is introduced to obtain ultrathin, mesoporous TiO2 nanosheets by the alkali precipitation of aqueous TiCl3 in the presence of NH4OH, and in-situ templating with polyvinyl alcohol (PVA). The synthesized titania have been characterized by N2 adsorption-desorption measurements, x-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), thermo-gravimetric analysis (TGA) and ultraviolet-visible (UV-vis) spectroscopy. The obtained titania were hexagonal-like, detached, non-agglomerated, polydispersed, sub-20 nm nanodiscs. Unlike in doping methods, their surface area and pore volumes of can easily be tailored devoid of any wavelength shift, by simply tuning the amount of the template. Accordingly, their aggregation as microspheres can successfully be controlled by the templating step. The remarkable photoactivity of these nanoscopic materials has been confirmed by the degradation of aqueous methyl orange. Iranian Chemical Society 2020 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/87628/1/ABSTRACT.pdf Hamisu, Abubakar and Gaya, Umar and Abdullah, Abdul Halim (2020) A novel poly(vinyl alcohol) post-precipitation template synthesis and property tuning of photoactive mesoporous nano-TiO2. Physical Chemistry Research, 8 (2). 281 - 295. ISSN 2322-5521; ESSN: 2345-2625 https://www.physchemres.org/article_104080.html 10.22036/PCR.2020.210668.1704 |
| spellingShingle | Hamisu, Abubakar Gaya, Umar Abdullah, Abdul Halim A novel poly(vinyl alcohol) post-precipitation template synthesis and property tuning of photoactive mesoporous nano-TiO2 |
| title | A novel poly(vinyl alcohol) post-precipitation template synthesis and property tuning of photoactive mesoporous nano-TiO2 |
| title_full | A novel poly(vinyl alcohol) post-precipitation template synthesis and property tuning of photoactive mesoporous nano-TiO2 |
| title_fullStr | A novel poly(vinyl alcohol) post-precipitation template synthesis and property tuning of photoactive mesoporous nano-TiO2 |
| title_full_unstemmed | A novel poly(vinyl alcohol) post-precipitation template synthesis and property tuning of photoactive mesoporous nano-TiO2 |
| title_short | A novel poly(vinyl alcohol) post-precipitation template synthesis and property tuning of photoactive mesoporous nano-TiO2 |
| title_sort | novel poly vinyl alcohol post precipitation template synthesis and property tuning of photoactive mesoporous nano tio2 |
| url | http://psasir.upm.edu.my/id/eprint/87628/1/ABSTRACT.pdf |
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